Well, I always talk about the day before, and yesterday there was a very good catch indeed, far better than Wednesday, which was very disappointing.
New catches were an oddish, a male nidoran (now I have a male and a female, yay), a caterpie and a poliwhirl. Of those the nidoran was probably the highlight but the poliwhirl was also very exciting... Really any new catch is pretty great :)
Other honourable mentions -
I caught one weedle and hatched another. May not sound that great but it gave me enough candy to turn one of them into a kakuna, which was a new entry for me.
I caught a second goldeen (I'm fond of them)
And a third gastly